8-Channel Low Side Driver 3.1V to 3.6/4.5V to 5.5V 32-Pin QFN

The IC drives 2 or 3 unipolar stepper motors and provides an optional stall detection for end position detection. For LED dimming a quasi logarithmic duty cycle is following the physiology of the human eye. With 3 PWM sources color LEDs can be driven in 3-color LED mode (245Hz PWM). The Relay PWM mode automatically adjusts the PWM to an effective supply voltage of typ. 11V. All outputs are short circuit and over-temperature protected with error read back capability. Switch monitoring with control lamp combination with only 1 wire and output is possible.

• 8 or 12 high current outputs
• RON = 1.5? (typ.) IMAX = 350mA
• Outputs combinable for higher loads
• Digital voltage range VDD 3.3V or 5.0V
• Low standby current < 1µA @50°C
• Low output leakage < 5µA @13V, RT
• SPI interface with diagnostics
• Open load detection
• Short circuit limitation, - detection
• Output clamping for inductive loads typ. >40V
• Thermal overload protection
• -40°C to +125°C operation temperature (QFN)